title: Joint response-effect compatibility.
abstract: When performing jointly on a task, human agents are assumed to represent their coactor's share of this task, and research in various joint action paradigms has focused on representing the coactor's stimulus-response assignments. Here we show that the response-effect (R-E) contingencies exploited by a coactor also affect performance, and thus might be represented as if they were used by oneself. Participants performed an R-E compatibility task, with keypresses producing spatially compatible or incompatible action effects. We did not observe any R-E compatibility effects when the task was performed in isolation (individual go-no-go). By contrast, small but reliable R-E compatibility effects emerged when the same task was performed in a joint setting. These results indicate that the knowledge of a coactor's R-E contingencies can influence whether self-produced action effects are used for one's own motor control.
authors.affiliation: Julius Maximilians University of Würzburg, Würzburg, Germany, roland.pfister@psychologie.uni-wuerzburg.de.
authors.forename: Roland
authors.initials: R
authors.lastname: Pfister
authors.forename: Thomas
authors.initials: T
authors.lastname: Dolk
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Prinz
authors.forename: Wilfried
authors.initials: W
authors.lastname: Kunde
mesh_terms: D000328:Adult; D059031:Anticipation, Psychological / Q000502:physiology*; D056344:Executive Function / Q000502:physiology*; D005260:Female; D006801:Humans; D007266:Inhibition, Psychological; D007398:Interpersonal Relations; D008297:Male; D009043:Motor Activity / Q000502:physiology*; D055815:Young Adult